Park Ae-Na

During the Japanese occupation of Shanghai, a Chinese woman trains in the covert arts. When she arrives in Hong Kong, she learns that her brother works on behalf the Japanese cause. She then pulls together a team of women warriors to stop her brother

A crime / revenge movie loaded with gory torture sequences, including acid in the shower, a pick-axe killing and a lovely scene where a man is tied to a cross and killed with the titular critters. Scenes from this later ended up in the IFD / Godfrey Ho mishmash Majestic Thunderbolt (1985).